发明名称 |
DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device constituted so as to prevent toner scattering through a filter while maintaining the function of pressure release by using an appropriate filter depending on the air flow within a main body of an image forming apparatus. <P>SOLUTION: The developing device 5 which is mounted on the image forming apparatus equipped with a fan and develops the latent image formed on an image carrier to visualize the image has: a developer carrier 51 which carries the developer and faces the image carrier 2; a case 50 which covers a portion of the developer carrier and houses the developer; an opening 50a for pressure relief which is disposed in the case to reduce the internal pressure; and the filter which is disposed in the opening. The filter is an electrostatic charging filter. The filter is disposed in a position facing the transfer surface of a transfer image carrier 3 carrying the unfixed image transferred from the image carrier 1. The influence of the pressure gradient generated by the air flow within the main part of the image forming apparatus is suppressed by such configuration and the toner scattering through the interior of the filter can be reliably prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT |
申请公布号 |
JP2007140288(A) |
申请公布日期 |
2007.06.07 |
申请号 |
JP20050336122 |
申请日期 |
2005.11.21 |
申请人 |
RICOH CO LTD |
发明人 |
YOSHIDA KEIICHI;MASUDA KATSUMI;HATTORI YOSHIO;SUZUKI YUJI |
分类号 |
G03G15/08;B01D39/14;B01D46/00;B03C3/155;G03G9/087;G03G15/01;G03G21/00 |
主分类号 |
G03G15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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